VB1200 – Modulating Combustion Control

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Varidigm VB1200
Commercial Modulating Combustion Control

Varidigm VB1200 Modulating Commercial Combustion Control
Varidigm VB1201 Satellite Data Sheet
Varidigm VB1202 Split-Manifold Data Sheet

Maximum Efficiency + Maximum Turndown + Clean Combustion = VB1200

VB1200 Commercial Modulating Gas Control

Varidigm works with OEMs to map ideal Gas/Air curves and Maximum
Turndown for their induced draft, indirect fired equipment. The unique characteristics of their burner and heat exchanger combinations are programmed into the VB1200 which integrates the operation of all combustion system components to provide:
  • Modulating Control
  • Optimal Efficiency (Mid & High)
  • Maximum Turndown
  • Clean Combustion
  • “Specifiable” Advantages

Platform Attributes

Simultaneous sensing and control of both combustion air and fuel allow the VB1200 to MODULATE gas fired units and achieve:

  • OPTIMAL EFFICIENCY at every point over the firing range, conserving energy and reducing operating costs.
  • MAXIMUM TURNDOWN matching output to demand for superior temperature control
  • CLEAN COMBUSTION over the full firing range
  • FEWER ON-OFF CYCLES reducing start cycle wear on components and reducing temperature swings that contribute to thermal stress
  • AUTOMATIC COMPENSATION for changes in altitude and vent length eliminate nuisance lockouts and the need for high altitude kits
  • SINGLE POINT CONTROL for all gas system components including ignition, flame sensing, and safeties with SYSTEM STATUS CODES reported on a bright, seven segment display is easy to read and service
  • FIRING RATE controlled by 0-10vdc signal from BMS or configurable for control to DISCHARGE, SPACE or DIFFERENTIAL temperature setpoints
  • MULTIPLE/STACKED gas units can be operated by a MASTER VB1200 that automatically detects and configures a LINEAR FIRING RATE for up to (4) SATELLITE units
  • CONFIGURABLE ANALOG INPUTS and OUTPUTS for application flexibility